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qla2xxx: Pause risc before manipulating risc semaphore. 

Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
This commit is contained in:
Joe Carnuccio 2015-08-04 13:37:54 -04:00 committed by James Bottomley
parent cc79076439
commit 8dd7e3a559
1 changed files with 3 additions and 0 deletions
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3
drivers/scsi/qla2xxx/qla_init.c
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@ -1282,6 +1282,9 @@ qla25xx_manipulate_risc_semaphore(scsi_qla_host_t *vha)
vha->hw->pdev->subsystem_device != 0x0240)
return;
WRT_REG_DWORD(&vha->hw->iobase->isp24.hccr, HCCRX_SET_RISC_PAUSE);
udelay(100);
attempt:
timeout_msec = TIMEOUT_SEMAPHORE;
n = timeout_msec / delta_msec;